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中耕作物精準(zhǔn)穴施肥控制機構(gòu)工作參數(shù)優(yōu)化與試驗
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“十二五”國家科技支撐計劃項目（2014BAD06B04-1-04）


Working Parameters Optimization and Experiment of Precision Hole Fertilization Control Mechanism for Intertilled Crop
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    摘要:

    為增加中耕作物產(chǎn)量，有效提高肥料利用率，設(shè)計了玉米苗期自動穴施肥控制機構(gòu),，通過土槽試驗分析了穴施肥控制機構(gòu)的結(jié)構(gòu)和工作參數(shù)，研究了施肥傳動機構(gòu)工作參數(shù)對施肥控制精準(zhǔn)度的影響規(guī)律,。采用正交旋轉(zhuǎn)組合試驗，以動力輸出軸轉(zhuǎn)速,、臺車前進(jìn)速度,、觸碰轉(zhuǎn)針高度為影響因子，以穴株擬合度和傷苗率為響應(yīng)函數(shù),，利用Design-Expert軟件平臺的回歸分析法及響應(yīng)面分析法,，對3個因子進(jìn)行單因素和多因素正交試驗。結(jié)果表明：在臺車前進(jìn)速度為1.25m/s,，動力輸出軸轉(zhuǎn)速為16.5r/min,，觸碰轉(zhuǎn)針高度在5mm的條件下，穴株擬合度可達(dá)到0.796,，傷苗率接近10%,，參數(shù)優(yōu)化結(jié)果滿足玉米苗期施肥控制性能的要求,。

    Abstract:

    In order to increase the yield of intertilled crops and enhance the effective utilization rate of fertilizer, a kind of corn automatic hole fertilization control mechanism for intertilled crop was designed. The structure and working parameters of hole fertilization control mechanism were analyzed by soil bin testing. The influence law of parameters of transmission mechanism on the accuracy of fertilizing control was studied. The orthogonal rotation combination method was used with the power output shaft speed, vehicle forward speed and seedling needle height as impact factors, the seedling injury rate and the fitting degree of holes and plants as response functions. The regression analysis of Design-Expert platform and the response surface method were used. The singlefactor and multifactor orthogonal experiment was carried out. The results showed that, when the vehicle forward speed was 1.25m/s, power output shaft speed was 16.5r/min, seedling needle height was 5mm, the fitting degree of holes and plants can reach to 0.796 and seedling injury rate was close to 10%. The optimized parameters can meet the requirements of corn fertilization during seedling stage.

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李沐桐,溫翔宇,周福君.中耕作物精準(zhǔn)穴施肥控制機構(gòu)工作參數(shù)優(yōu)化與試驗[J].農(nóng)業(yè)機械學(xué)報,2016,47(9):37-43. Li Mutong, Wen Xiangyu, Zhou Fujun. Working Parameters Optimization and Experiment of Precision Hole Fertilization Control Mechanism for Intertilled Crop[J]. Transactions of the Chinese Society for Agricultural Machinery,2016,47(9):37-43.

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  • 收稿日期:2016-02-29
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  • 在線發(fā)布日期: 2016-09-10
  • 出版日期: 2016-09-10
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